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RedHat 9 (Linux i386) - man page for xmtextfieldgetsubstring (redhat section 3)

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XmTextFieldGetSubstring(library call)			    XmTextFieldGetSubstring(library call)

       XmTextFieldGetSubstring	-- A TextField function that retrieves a copy of a portion of the
       internal text buffer

       #include <Xm/TextF.h>
       int XmTextFieldGetSubstring(
       Widget widget,
       XmTextPosition start,
       int num_chars,
       int buffer_size,
       char *buffer);

       XmTextFieldGetSubstring retrieves a copy of a portion of the internal  text  buffer  of	a
       TextField  widget. The function copies a specified number of characters from a given start
       position in the internal text buffer into a buffer provided by the  application.   A  NULL
       terminator is placed at the end of the copied data.

       The  size  of  the  required  buffer  depends on the maximum number of bytes per character
       (MB_CUR_MAX) for the current locale.  MB_CUR_MAX is a macro defined in stdlib.h. The  buf-
       fer  should  be	large enough to contain the substring to be copied and a NULL terminator.
       Use the following equation to calculate the size of buffer the application should provide:

       buffer_size = (num_chars* MB_CUR_MAX) + 1

       widget	 Specifies the TextField widget ID.

       start	 Specifies  the  beginning  character  position  from  which  the  data  will  be
		 retrieved.  This  is  an  integer number of characters from the beginning of the
		 text buffer. The first character position is 0 (zero).

       num_chars Specifies the number of characters to be copied into the provided buffer.

		 Specifies the size of the supplied buffer in bytes. This size should account for
		 a NULL terminator.

       buffer	 Specifies  the  character  buffer  into  which  the internal text buffer will be

       For a complete definition of TextField and its associated resources, see XmTextField(3).

		 The function was successful.

		 The function failed because it was unable to copy the specified number of  char-
		 acters  into the buffer provided.  The buffer size may be insufficient. The con-
		 tents of buffer are undefined.

		 The requested number of characters extended  beyond  the  internal  buffer.  The
		 function  copied characters between start and the end of the widget's buffer and
		 terminated the string with a NULL terminator; fewer  than  num_chars  characters
		 were copied.

       XmTextField(3) and XmTextFieldGetSubstringWcs(3).

							    XmTextFieldGetSubstring(library call)
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